Hand pressure distribution during Oldowan stone tool production.

  title={Hand pressure distribution during Oldowan stone tool production.},
  author={Erin Marie Williams and Adam D Gordon and Brian G. Richmond},
  journal={Journal of human evolution},
  volume={62 4},
Modern humans possess a highly derived thumb that is robust and long relative to the other digits, with enhanced pollical musculature compared with extant apes. Researchers have hypothesized that this anatomy was initially selected for in early Homo in part to withstand high forces acting on the thumb during hard hammer percussion when producing stone tools. However, data are lacking on loads experienced during stone tool production and the distribution of these loads across the hand. Here we… CONTINUE READING


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